The Caddyinfo Forum has been updated to new software, and appears to be hitting on all cylinders now.

We Need You!

Caddyinfo Discussion Forum

Support There are two easy ways to contribute to
1) Caddyinfo Discussion Forum Contribution or Subcription click here
2) Direct contribution via Paypal, click the button below.

Join the forum
Join the forum and share your knowledge of Cadillacs and Cadillac Culture.

Write Cadillac Articles Email or post your articles to share with other Cadillac enthusiasts!

Seville Changes Year by Year

Cadillac Seville -> STS

Question mark 1989 First stand-along STS model.  Touring sedan option includes touring suspension, stiffer front springs, larger diameter front stabilizer bar, a rear stabilizer bar and faster steering.  Also 3.33:1 final drive ratio.  4.5L OHV engine for 155 hp 240 ft-lbs of torque.  White diamond added for standard Seville, and black metallic replaced with sable black. Total of 18 colors offerred. New Tampico carpets with mats.  VATS added. Electrochromic day/night mirror, engine oil life indicator, driver side express-down window, and delco/bose II symphony sound system now standard. Power front passenger and driver recliners and 15 in cast aluminum wheels standard. STS available in white diamond, sable black, black sapphire, and carmine red.

1990 Four new colors, for 16 - light auburn, dark auburn, medium slate gray, and dark slate gray. New side body reflexes. Corner turn signal lamps move from body to bumper. New white crystalline tail lamp.  STS now built entirely at Detroit/Hamtramck. STS has new front and rear body color low fascias with a black bead and body-color rocker molding, also with a black bead. 16 inch wheels and 215/60R16 tires introduced.  STS gets 6KY69 separate body style code.

1991 4.9L engine for 200 hp, 275 ft-lbs of torque at 3,000 rpm, and 4T60-e transmission.  STS gets 3.33:1 final drive, base Seville 2.97:1 final drive.  Rear transverse leaf springs, and single transverse muffler. STS gets new blue-tinted outside rearview mirrors standard, and revised seating. Rear console eliminated to accommodate a third, center rear seat passenger.  STS has 23mm front and 16mm rear stabilizer bars, 16 in wheels with Goodyear eagle GT4 P215/60R16's. A touring package with 15 in case aluminum wheels optional on Seville. New tail lamp treatment and neutral density back-up lamps.

1992 Body redesigned, exterior and interior.  Overall length of 203.9 in is 13 inches longer than previous model.  Interior volume increased 6.5 cubic feet to 119.5 cubic feet. 4.9L OHV 200 hp engine retained.  Design includes rear transverse leaf springs, and single transverse muffler with dual outlets, and twin dual tips.  Command Control Ride automatically selects among 3 suspension firmness settings.
P225/60R-16 wheels/tires. Black side mirrors covers.

1993 STS gets Northstar 4.6L DOHC engine 295 hp, 290 ft-lbs of torque, and 3.71:1 final drive.  Northstar comes with beefier 4T80-e transmission, speed sensitive steering, multi-link short/long arm rear suspension with coil springs, and dual mufflers.  High density poly-ethylene fuel tank replaces former welded steel tank to improve crash worthiness and corrosion resistance.  New engine and transmission add around 100 lbs.  Base Seville stays with 4.9L OHV engine for 200 hp, and 2.97:1 final drive.  STS gets Bosch ASRIIU traction control system.  STS gets solar control glass, and two new exterior colors: Academy Gray and Dark Cherry Red Metallic.  P225/60R16 wheels/tires.  Dual air bags.  Cup holder appears in armrest.  Body colored side mirror covers.

1994 Standard Seville renamed Seville SLS (Seville Luxury Sedan) and gets 270 hp Northstar, 4T80-e transmission and 3.11:1 final drive.  Road sensing suspension.  Revised style steering wheel/airbag.  Integral heater/blower control module.

1995 Northstar redesigned intake adds 5 hp.  Base Seville has 275 hp Northstar, STS now has 300 hp Northstar.

1996 Redesigned interior.  Center console better integrated.  OBD II electronics -- more things are checked, but aftermarket 'chips' not longer available.  Rain Sense wipers are added, which automatically alter wiper speed.  Slight weight reduction as some sensors are replaced.  Steering-wheel mounted controls for entertainment and environmental controls. Continuously Variable Road Sensing Suspension alters suspension firmness settings based on vehicle dynamics and speed.  Coolant fill switches to Dexcool long-life coolant.

1997StabiliTrak™added which prevents the STS from spinning.  CV-RSS added to SLS as standard equipment. All models benefit from increased front brake size (from 11.0" to 11.9"), aluminum steering knuckles (to reduce weight), redesigned front control arm and bushing (to soften road impact harshness), and extensive chassis stiffening and gussetting (to improve Noise/Vibration/Harshness NVH). HVAC and radio VF lighting increased in intensity to aid in viewing in direct sunlight. French seams added to all leather stitching on interior seating surfaces.

1998 All new car redesign -- interior and exterior as Seville moves from K-body chassis to G-body Aurora Chassis.  Seville becomes quieter, more solid with less vibration at the cost of 100 lbs of added weight.  Overall length down from 204.1 to 201 in but wheelbase up from 111 to 112.2.  Track up from 60.9 to 62.7/62.3 in.   Projection beam headlights.  Bose audio 4.0 system improves the entertainment system by a level of magnitude.  Performance algorithm shifting allows the transmission to behave/perform more like a manual transmission.  STS gets power tilt and telescoping steering column.  5mm thick door glass reduces noise.    Adaptive seating via a network of 10 air cells located in the front bucket seats automatically recognizes occupant position and adjusts the seats support to custom-fit every individual.

1999 Option added for massaging seats.

2000 Northstar redesigned to operate on regular unleaded.  Compression drops from 10.3:1 to 10.0:1. Upgraded StabiliTrak™. Air bag suppression system senses when small adults or children are seated in front of the bag and prevents the air bag from deploying.  Ultrasonic Rear Parking Assist (Option on STS and SLS) detects if there are objects or people behind the car when backing. Navigation System (Option on STS and SLS) provides a central video screen, and maps by region; CD based. New Exterior Colors: Midnight Blue and Bronzemist.
STS redline increased to 6700 rpm; SLS stays at 6500 rpm.

2001 Infotainment with Bose audio system (Option on STS) adds email access. Available Sport package combines several desirable options.  High Intensity Discharge headlights (Option on STS) provides brighter head lights.  Tire pressure monitor (Option on STS) detect low air in tires. Manual trunk release mechanism prevents owner getting locked into the trunk if car-jacked. New services from OnStar*.  Next generation Rainsense Wiper System automatically turns on the wipers as needed in addition to setting wiper blade speed. Torque-sensing express-up driver and front passenger windows allows window-up with one button press without the hazard of catching something in the window mechanism. 17" chrome wheels appearance option. New exterior colors: Graphite and Sequoia. New interior colors: Dark Grey replaces Pewter  *Was not be available at start of '01 production.

2002 Advanced DVD based Vehicle Navigation system available. XM Satellite Radio*            Next-generation MagneRide* MR replaces Cadillac’s continuously variable road-sensing suspension (CVRSS) struts, and offers superior handling, control and ride quality on the roughest road surfaces.  It minimizes damping forces as needed for improved road isolation and ride smoothness.  Factory engine oil fill to GF3 oil specifications allows extended oil and filter change interval to 12,500 miles.  The GF3 specification results in a .5 to 1 percent increase in fuel economy and a 40 percent reduction in oil consumption.  Enhanced optional Navigation System - the system uses DVD technology and provides more detailed coverage and convenience than the CD-based system it replaces.  Exterior color – Blue Onyx. Cadillac’s redesigned wreath and crest emblem will grace the grille emblem, keys, CHMSL, steering wheel and engine top cover.  Upgraded Radio Data System (RDS) functionality. Integration kit for tri-band cellular phone*.       * Not be available at start of 2002 production

2003 Northstar redesigned to add steel crankshaft instead of iron, and Gryphal coating for the pistons to decrease friction and wear.  Magnetic ride control finally actually available (shown in 02, but appears in 03?).  Two new exterior colors.  Michelin tires standard on SLS (225/60R16) and STS (235/55R17) (replacing previous Goodyear OEM tires).  Chrome wheels standard on STS. The Seville SLS gets a freshened exterior look in 2003. Body-colored grille and foglamps added to the SLS complete a monochromatic strategy for Seville. The monochromatic exterior look began in 2000 with the STS taillamps, rocker moldings and wheels.

2004 Deletions: STS Model, Exterior color (12U), Sterling Exterior color (76U), Bronzemist Exterior color (98U), White Diamond (U1R) Sound System. New Features: Exterior color (67U), Light Platinum; Exterior color (93U), White Lightning (UM3); Sound system, ETR AM/FM stereo with CD player, includes seek-and-scan, THeftLock, digital clock and 8 speakers. Standard on SLS, 1SA and 1SB.

Changes: (A45) Memory Package now included in 1SB; Exterior color (25U) has name change from Blue Onyx to Blue Chip; Exterior color (41U) has name change from Sable Black to Black Raven.

2005 All-new luxury performance sedan.  Distinctive and bold exterior design. Upscale interior with Tuscany leather seats, eucalyptus wood and aluminum trim.  Rear-wheel-drive Sigma architecture with AWD availability. Two engines: 255-horsepower (190 kw) 3.6L V-6 VVT (variable valve timing) and 320-horsepower (238 kw)Northstar 4.6L V-8 VVT
Magnetic Ride Control and StabiliTrak. Keyless Access with push button start, Adaptive Remote Start, Adaptive Cruise Control (ACC), Intellibeam, reconfigurable, four-color Head-Up Display (HUD). Bose personalized 5.1 Surround Sound system with 15 speakers, integrated six-disc CD/DVD changer with DVD-A, CD and MP3 capability. Eight-inch VGA-quality touch screen, advanced navigation, OnStar, Bluetooth capability, advanced voice recognition.

2006:  All-wheel drive becomes an available option on V-6 models.  Bose 5.1 Studio Surround Sound with Navigation standard on the V-8 1SEpackage.  18-inch wheels available mid-year 2005 on 1SC V-6 and 1SF V-8 RWD.  Four exterior colors: Stealth Grey, Radiant Bronze, Blackberry and Infrared

2007  Model Year Changes:

  Exterior color (42U) Silver Smoke
  Exterior color (46U) Stealth Gray
  Exterior color (61U) Sand Storm
  1SD Equipment Group
  (QAF) Performance Handling Package
  (N87) 18" x 8" 9-spoke, faceted, polished cast aluminum wheels
  (N88) 17" x 7.5" 7-spoke, painted cast aluminum wheels
  (Q14) 17" x 7.5" front, 17" x 8" rear 7-spoke, painted cast aluminum wheels
  (V09) Performance Cooling Package
  (M22) 5-speed automatic transmission for RWD-V8
  (M82) 5-speed automatic transmission for RWD-V6
  (MV3) 5-speed automatic transmission for AWD-V8
  (MX5) 5-speed automatic transmission for AWD-V6
New Features
  Exterior color (30U) Thunder Gray. Available at extra charge.
  Exterior color (51U) Gold Mist
  Exterior color (78U) Sunset Blue
  (P73) 18" x 8.5" chrome wheels (Included and only available in (PCZ) Performance Handling Package).
  (PCZ) Performance Handling Package
  (QAF) 255/45R18 Michelin Pilot Sport tires (Included and only available in (PCZ) Performance Handling Package).
  (J56) Brembo brakes (Included and only available in (PCZ) Performance Handling Package)
  (MX0) 5-speed automatic transmission for RWD-V6
  (MX0) 6-speed automatic transmission for RWD-V8
  (MX7) 5-speed automatic transmission for AWD-V6
  (MX7) 6-speed automatic transmission for AWD-V8
Changes    All wheel center caps change to full-color Wreath & Crest.

2008 Cadillac STS Deletions
Exterior color (80U) Infrared
(QF8) 18" 9-spoke, non-faceted polished cast aluminum wheels.
(LY7) 3.6L V6 VVT SFI Engine
(MX0) and (MX7) 5-speed automatic transmissions
Eucalyptus wood trim
2008 Cadillac STS New Features
(PDP) V6 Luxury Collection (1SB only)
(PDQ) V6 Premium Luxury Collection (1SC only)
(PDU) V8 Premium Luxury Collection (1SE only)
(PDV) V8 Performance Collection (1SG only)
(Y41) V6 Luxury Level Two Package.
(Y53) Driver Awareness Package.
Exterior color (12U) WA-519Q Black Cherry
Exterior color (89U) WA-505Q Crystal Red Tintcoat. Available at extra charge.
Exterior refresh, includes new grille, fender extractors, rocker panels, front and rear fascias and exhaust tips
Interior refresh, includes center stack, door trim and new wood accents.
(P40) 18" x 8" polished cast aluminum wheels
New design for (PD5) 18" x 8" chrome wheel
(UFL) Lane Departure Warning. Standard on STS-V. Included and only available in (Y53) Driver Awareness Package on STS.
(UFT) Side Blind Zone Alert. Standard on STS-V. Included and only available in (Y53) Driver Awareness Package on STS. New design for (NR7) Heated and leather-wrapped steering wheel with Kinetic aluminum trim. STS-V only. Sapele Pommele wood in (B19) and (B20) Wood Trim Packages.
(LLT) 3.6L V6 SIDI Engine. Standard on V6 (6DW29).
(JL7) Enhanced 4-channel StabiliTrak with Active Steering on 1SG with AWD..
(MX0) and (MX7) 6-speed automatic transmissions on V6.
2008 Cadillac STS Changes
(PCZ) Performance Handling Package now available on 1SC and 1SG AWD.
(UV6) Head-Up Display available without (K59) Adaptive Cruise Control on V6 and V8. Requires (YQ4) Audio system with navigation.
(UV6) Head-Up Display now standard on STS-V

CaddyInfo Discussion Forum
Where Cadillac Fans meet to Discuss Cadillacs

Cadillac Acceleration Testing
0-60 mph, Quartermile, etc

Cadillac Performance Modifications
How do I add HP?

Ebay Auctions for Cadillac Wheels/Tires
Cardio-Doc knows Wheels

Archive of Cadillac Photos
Cars of People on the Board

How to Link to Caddyinfo
Images and URLs

Search for Cadillac products